JSC2013-E-013524 (4 March 2013) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 35/36 prime crew member Chris Cassidy of NASA (front) signs in before Russian space officials for the start of qualification simulations in Soyuz and Russian segment trainers. Behind Cassidy are Soyuz Commander Pavel Vinogradov (left) and Alexander Misurkin. The three crew members are preparing for their launch March 29 (Kazakh time) to the International Space Station in their Soyuz TMA-08M spacecraft from the Baikonur Cosmodrome in Kazakhstan. Photo credit: NASA